Finding the Third Proportional to 278,753 and 443,052

Step by Step Solution

1. Step 1: Write the proportion equation
   278,753 : 443,052 = 443,052 : x
2. Step 2: Convert to fraction form
   278,753/443,052 = 443,052/x
3. Step 3: Cross multiply
   278,753x = 443,052 × 443,052
4. Step 4: Simplify right side
   278,753x = 196,295,074,704
5. Step 5: Solve for x
   x = 196,295,074,704/278,753
6. Step 6: Final answer
   x = 704,190.00